FIBER REINFORCED TUBULAR ARTICLE HAVING ABRASION RESISTANT LINER

• US 3,794,081 A
• Filed: 05/05/1972
• Issued: 02/26/1974
• Est. Priority Date: 05/05/1972
• Status: Expired due to Term

• Current Assignee: James T. Fiser, Ray R. James, Robert M. Jackman
• Original Assignee: James T. Fiser, Ray R. James, Robert M. Jackman
• Inventors: Jackman, Robert M., Fiser, James T., James, Ray R.
• Primary Examiner(s): Myracle, Jerry W.
• Application Number:
  US05/250,767
• Time in Patent Office: 662 Days
• Field of Search: 138/140,141,145,146,153,DIG.2
• US Class Current: 138/141
• CPC Class Codes: F16L 57/06 against wear F16L57/04 takes precedence
• CPC Class Codes: F16L 58/00 Protection of pipes or pipe fittings against corrosion or incrustation compound tubes F16L9/14

Abstract

A tubular article having an internal abrasion and corrosion resistant liner and a method of forming the same provides an inner layer of cheesecloth impregnated with an epoxy resin with the resin adapted to form an outer layer on the cheesecloth. A layer including a plurality of ceramic spheres each having at least a partial surface coating of metal are secured to the cheesecloth through the bonding provided by the metal coating and resin and are maintained in a confined condition to form the inner liner, such as by an outer layer of cheesecloth impregnated with an epoxy resin which surrounds the layer of ceramic spheres and resin. A plurality of fiber glass filaments impregnated with thermosetting resin surround the inner liner with the entire composite cured to form the fiber reinforced pipe.

Claims

2. The tubular article of claim 1, wherein said fibrous material includes cheesecloth.

3. A tubular article having an inner abrasion resistant liner including a first layer of cheesecloth impregnated with an epoxy resin forming the inner surface of the tubular article, a layer having a plurality of ceramic spheres having at least a partial surface coating of metal bonded to said cheesecloth by said epoxy resin, a second layer of cheesecloth impregnated with an epoxy resin surrounding and confining said layer of ceramic spheres, and a plurality of fiber glass filaments impregnated with thermosetting resin surrounding said second layer of cheesecloth for providing a highly abrasion and corrosion resistant tubular article when cured.